/Engine/Plugins/Media/MediaIOFramework/Source/MediaIOCore/Public/MediaCapture.h
For this to work, it is expected that CaptureImmediate_RenderThread is called periodically with the resource to capture.
True if the capture was successfully initialize
bool CaptureRHITexture ( const [FRHICaptureResourceDescription](API\Plugins\MediaIOCore\FRHICaptureResourceDescription) & ResourceDescription, [FMediaCaptureOptions](API\Plugins\MediaIOCore\FMediaCaptureOptions) CaptureOptions )